Opinion: Welcome to Yosemite, the new Pyrocene Park
RBC I The Pleistocene epoch that began 2.6 million years ago sent ice in waves through Yosemite. Glaciers gouged out great valleys along the Merced and Tuolumne rivers, ice sheets…
RBC I The Pleistocene epoch that began 2.6 million years ago sent ice in waves through Yosemite. Glaciers gouged out great valleys along the Merced and Tuolumne rivers, ice sheets…